<form class="form-inline pull-right top-login-form" method="post" action="<?php echo SITE_URL; ?>/user/login">
    <div class="row-fluid">
        <input type="text" name="user_name" class="input-small" placeholder="Username">
        <input type="password" name="user_pass" class="input-small" placeholder="Password">
        <button type="submit" class="btn btn-small btn-style1">Login</button>
        <a href="<?php echo SITE_URL; ?>/user/signup" class="btn btn-small btn-style2">Sign up</a>
    </div>
    <div class="row-fluid">
        <label class="checkbox">
            <input type="checkbox"> Remember me
        </label>
        <!--
        <select class="input-small">
            <option>As last</option>
        </select>
        -->
    </div>
</form>